CHENG Xue , ZHANG Tao , BAI Dingqun , PENG Xiaohua , YU Heping
  • Department of Rehabilitation Medicine, the First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, P. R. China;
YU Heping, Email: lyshqiao@126.com
Chronic stroke; A3 lower limb rehabilitation robot; Robot-assisted gait training; Rehabilitation effect; Preliminary study
10.7507/1002-0179.202003181
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Objective To explore the rehabilitation effect of a domestic lower limb rehabilitation robot on patients with chronic stroke.Methods Chronic stroke patients who were hospitalized in the Department of Rehabilitation Medicine, the First Affiliated Hospital of Chongqing Medical University from September 2017 to August 2019 were collected. These patients underwent A3 robot-assisted gait training for 6 weeks. The differences of gait parameters, spatiotemporal asymmetries, total score and score of each item of Barthel Index were analyzed before and after 6 weeks training.Results A total of 15 patients were included, and 12 patients finally completed the trial. After the training, the gait parameters of patients with chronic stroke were significantly improved. Comparing with the baseline data, the cadence, stride length, velocity, step length of the affected leg, and step length of the healthy leg significantly increased (P<0.05) after the training; the stride time and the double-support time were significantly shorter (P<0.05); the stance phase of the affected leg was shortened (P<0.05); the swing phase of the affected leg was prolonged (P<0.05); While no significant difference in the stance phase or swing phase of the healthy leg was found (P>0.05). The spatiotemporal asymmetries had no significant change compared with the baseline data, including the ratio of step length [(1.26±0.23) vs. (1.13±0.10); t=1.816, P=0.097] and the ratio of swing phase of both lower limbs [1.14 (0.23) vs. 1.10 (0.38); Z=−0.153, P=0.878]. The activities of daily living were improved after the training, and the total score of Barthel Index [(72.92± 13.05) vs. (85.42±14.38); t=−6.966, P<0.001] was significantly higher than that before the training. Among the items, the scores of bathing [0.00 (3.75) vs. 5.00 (5.00); Z=−2.000, P=0.046], walking on the flat ground [10.00 (3.75) vs. 15.00 (5.00); Z=−3.000, P=0.003], and going up and down stairs [5.00 (5.00) vs. 7.50 (5.00), Z=−3.000, P=0.003] were higher than the baseline data, and the differences were statistically significant.Conclusions A3 robot-assisted gait training can effectively improve the walking ability and activities of daily living of patients with chronic stroke but not the spatiotemporal asymmetries. Whether the spatiotemporal asymmetries can be improved by adjusting the robot equipment parameters needs to be further studied.

Citation： CHENG Xue, ZHANG Tao, BAI Dingqun, PENG Xiaohua, YU Heping. Preliminary study on rehabilitation effects of the A3 robot-assisted gait training on patients with chronic stroke. West China Medical Journal, 2020, 35(5): 579-584. doi: 10.7507/1002-0179.202003181 Copy

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